# How does a wing mounted jet engine on a supersonic airplane prevent the interference in the flow due to Shock? [duplicate]

Wing mounted jet engines face the free stream at Mach number 1 or above, and they work perfectly for Mach numbers below 1 as well, even though the free stream characteristics change a lot after Mach 1.

1. How do the engines manage to work despite the fact that after Mach 1, the Shock waves would try and disrupt the normal airflow?
2. If the engines are optimized to work at above Mach 1, does this cause any trouble for them to work under subsonic conditions?

Don't confuse with "Why cant jet engines work with supersonic flow?"

## marked as duplicate by fooot, Federico♦, reirab, Jan Hudec, minsJun 24 '15 at 21:04

• you cannot simply add a line like that: Don't confuse with "Why cant jet engines work with supersonic flow?" why? what makes this question different? – Federico Jun 24 '15 at 20:41
• Which aircraft which has wing-mounted engines and is capable of supersonic flight do you have in mind? Because I can't think of any (assuming you mean hung in pods below and ahead of wings and not stuck to underside like Concorde or B-1B, which look very different)! – Jan Hudec Jun 24 '15 at 20:44
• The answers to the linked question do actually answer this question. – reirab Jun 24 '15 at 20:47